PA-APIv5のAPIを使った商品データ取得用関数の実装例。

GetItems.php

<?php
/*
 * 第1引数にはPA-APIv5のアクセスキーを、第2引数にはASINの配列を指定する。
 * SDKへのパスは環境に合わせて変更すること。
 * エラーメッセージ表示部はコメントアウトしているので、必要に応じてコメントを外して利用すること。
 */
use Amazon\ProductAdvertisingAPI\v1\com\amazon\paapi5\v1\api\DefaultApi;
use Amazon\ProductAdvertisingAPI\v1\ApiException;
use Amazon\ProductAdvertisingAPI\v1\Configuration;
use Amazon\ProductAdvertisingAPI\v1\com\amazon\paapi5\v1\GetItemsRequest;
use Amazon\ProductAdvertisingAPI\v1\com\amazon\paapi5\v1\GetItemsResource;
use Amazon\ProductAdvertisingAPI\v1\com\amazon\paapi5\v1\PartnerType;
use Amazon\ProductAdvertisingAPI\v1\com\amazon\paapi5\v1\ProductAdvertisingAPIClientException;
use Amazon\ProductAdvertisingAPI\v1\ObjectSerializer;
use Amazon\ProductAdvertisingAPI\v1\com\amazon\paapi5\v1\GetItemsResponse;

require_once('/usr/share/php/paapi5-php-sdk/vendor/autoload.php');
 
function getItems($data,$item_list)
{
    $config = new Configuration();

    /*
     * Add your credentials
     * Please add your access key here
     */
    $config->setAccessKey($data['access_key_id']);
    # Please add your secret key here
    $config->setSecretKey($data['secret_key']);

    # Please add your partner tag (store/tracking id) here
    $partnerTag = $data['amazon_associate_id'];

    /*
     * PAAPI host and region to which you want to send request
     * For more details refer: https://webservices.amazon.com/paapi5/documentation/common-request-parameters.html#host-and-region
     */
    $config->setHost('webservices.amazon.co.jp');
    $config->setRegion('us-west-2');

    $apiInstance = new DefaultApi(
    /*
     * If you want use custom http client, pass your client which implements `GuzzleHttp\ClientInterface`.
     * This is optional, `GuzzleHttp\Client` will be used as default.
     */
        new GuzzleHttp\Client(), $config);

    # Request initialization

    # Choose item id(s)
    $itemIds = $item_list;

    /*
     * Choose resources you want from GetItemsResource enum
     * For more details, refer: https://webservices.amazon.com/paapi5/documentation/get-items.html#resources-parameter
     */
    $resources = array(
        GetItemsResource::ITEM_INFOTITLE,
        GetItemsResource::OFFERSLISTINGSPRICE,
        GetItemsResource::OFFERSLISTINGSDELIVERY_INFOIS_PRIME_ELIGIBLE,
        GetItemsResource::OFFERSLISTINGSPROGRAM_ELIGIBILITYIS_PRIME_EXCLUSIVE,
        GetItemsResource::OFFERSLISTINGSPROGRAM_ELIGIBILITYIS_PRIME_PANTRY,
        GetItemsResource::OFFERSLISTINGSAVAILABILITYMESSAGE,
        GetItemsResource::OFFERSLISTINGSAVAILABILITYMAX_ORDER_QUANTITY,
        GetItemsResource::OFFERSLISTINGSAVAILABILITYMIN_ORDER_QUANTITY,
        GetItemsResource::OFFERSLISTINGSAVAILABILITYTYPE,
        GetItemsResource::IMAGESPRIMARYMEDIUM);

    # Forming the request
    $getItemsRequest = new GetItemsRequest();
    $getItemsRequest->setItemIds($itemIds);
    $getItemsRequest->setPartnerTag($partnerTag);
    $getItemsRequest->setPartnerType(PartnerType::ASSOCIATES);
    $getItemsRequest->setResources($resources);

    # Validating request
    $invalidPropertyList = $getItemsRequest->listInvalidProperties();
    $length = count($invalidPropertyList);
    if ($length > 0) {
        echo "Error forming the request", PHP_EOL;
        foreach ($invalidPropertyList as $invalidProperty) {
            echo $invalidProperty, PHP_EOL;
        }
        return null;
    }

    # Sending the request
    try {
        $getItemsResponse = $apiInstance->getItems($getItemsRequest);

        # Parsing the response
        if ($getItemsResponse->getItemsResult() != null) {
            return $getItemsResponse;
        }
        if ($getItemsResponse->getErrors() != null) {
            return null;
        }
    } catch (ApiException $exception) {
    /*
        echo "Error calling PA-API 5.0!", PHP_EOL;
        echo "HTTP Status Code: ", $exception->getCode(), PHP_EOL;
        echo "Error Message: ", $exception->getMessage(), PHP_EOL;
        if ($exception->getResponseObject() instanceof ProductAdvertisingAPIClientException) {
            $errors = $exception->getResponseObject()->getErrors();
            foreach ($errors as $error) {
                echo "Error Type: ", $error->getCode(), PHP_EOL;
                echo "Error Message: ", $error->getMessage(), PHP_EOL;
            }
        } else {
            echo "Error response body: ", $exception->getResponseBody(), PHP_EOL;
        }
        */
        return null;
    } catch (Exception $exception) {
        echo "Error Message: ", $exception->getMessage(), PHP_EOL;
        return null;
    }
}